
I have a solar system in my RV, but the inverter only gives me a bar graph light meter that shows the total percentage of energy being drawn from the battery. So I installed this on my battery and was surprised. It showed me exactly how much current was being drawn from the batteries. As I turned various devices on and off on the bus, I knew exactly how much energy they were using. And I was surprised by several discoveries! It's well worth the cost and installation time.

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